Mortising-machine.



D. W. EDWARDS.

MOBTISING MAOHINE. APPLIOATiOH rmzn mm. as, 1910.

Patented May 23,1911.v

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MOBTISING MACHINE. APPLIUATION FILED m. as, 1910.

Patented May 23, 1911.

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MOBTISING MACHINE.

ABPLIOATION FILED FEB. 28, 1910.

Patented May 23, 1911.

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Patented May 23, 1911.

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To all whom it may concern:

UNITED STATES PATENT OFFICE.

DANIEL W. EDWARDS, OF ROCKFORD, ILLINOIS, ASSIGNOR TO GREENLEE BROS. & COM- PANY, OF ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS.

MORTISING-MACHINE.

Specification of Letters Patent.

Patented May 23, 1911.

Be it known that I, DANIEL W. EDWARDS,

' a citizen of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Mortlsing-Machines, of which the following is a specification.

The object of this invention is to construct a'mortlslng machine 1n Wl'llCll gearing is :movable with the tool holding head.

In the accompanying drawings, Figure 1 is a front elevation. Fig. 2 is a rear elevation. Flg. 3 1s a plan v1ew. F 1g. 4 1s a side elevation. Fig. 5 is a partial side elevation in which a part of the casing is broken away.

Fig. 6 shows the screw for moving the tool holding head. Fig. 7 is a section on dotted line a a Fi 5. Fig. 8 is a section on dotted line b b Fig. 5. Fig. 9 is a partial section and plan view of the clutches. Fig. 10 is an elevation of the friction clamp for holding .the tool holding head against horizontal movement. Fig. 11 is a section on dotted line cl d Fig. 10. Fig. 12 is a section on dotted line e 6 Fig. 11. Fig. 13 is a face representation of the friction clamp, in which parts are broken away.

The operative parts are supported by the base 1 having its upper face provided with I guide-ways 2. A driven shaft 3 is supported in suitable bearings and supports a tight pulley 4, a loose pulley 5 and a driven which reciprocate on the guide-ways 2. This pulley 6.

' A carriage 7 is formed with guides 8 carriage is in the form of a chamber which contains the speed gearing. From the rear end of this carriage 7 extends a bracket 9 which supports a pulley 10. Brackets 11 extend from the upper portion of the base .1, and support idlers 12 and 13. A slide 14 is supported by the upper portion of base,

is adapted to move horizontally and supports an idler 15. A cam lever 16 has a ,connection with the slide 14, by which the slide may be moved.

ing connection with the shaft 17 through the bevel gears 20 and 21. Two spur gears 22 and 23 are fixedly connected to the shaft 17,

and two spur gears 24 and 25 are loosely mounted on the shaft '18, and mesh with the spur gears 22 and 23. The spur gears 23 and 25 have an intermediate 26 in order that the direction of rotation of the shaft 18 may be changed. Each of the spur gears 24 and 25 are formed with a friction ring 27 within which is located a friction shoe 28 keyed to the shaft 18, and an arm 29 is pivoted to the shoe and supports a roller 30 at its free end. This arm bears against the other end of the shoe in order that a movement of the roller 30 toward the shaft 18 will exert pressure on the end of the arm 29, which is pivoted to the shoe 28 and acts to separate the ends of the shoe and cause the shoe to expand against the inner face of the friction ring, thereby forming a connection between the shaft 18 and either of the spur gears 24 and 25. On the shaft 18 is slidably mounted a clutch section 31, which supports two laterally extending arms 32. A yoke 33 is supported by the rod 34 and is located in the annular groove 35 of the clutch section. A bell crank has one arm 36 thereof pivotally connected to the rod 34, and a vertically arranged rod 37 is pivotally connected to the other arm 38 of the bell crank.

A pivotally supported hand lever 39 has one end 40 connected to the arm 36 of the bell crank by the link 41. By means of. this hand lever 39, the rod 34 may be moved lengthwise thereby moving the clutch section 31 to cause projections 32 of the clutch section to engage the rollers 30 according to the direction of its movements, which will form a driving connection between the shaft 17 and the shaft 18, which will cause the shaft 18 to be rotated in opposite directions.

From the bearing 42 extends a side bearing 43 which supports a screw-shaft 44, and a bevel gear 45 has a driving connection with the shaft 18 and meshes with a bevel gear 46 connected to the screw-shaft 44.

The front face of the carria e 7 is formed with a vertically arranged gui e-way 47. A guide 48 is supported to move vertically in the guide-way 47, and from its rear face extends a projection 49 having a screwthreaded opening within which is located the screw-shaft 44. As the screw-shaft 44 is rotated in one direction, the guide 48 will be raised, and when rotated in the opposite direction the guide will be lowered.

A tool supporting spindle 50 is supported in bearings connected to the guide 48, and a pulley 51 is supported. by this spindle. A belt 52 passes under the pulley 6, over the pulleys 12 and 13, and around the pulleys 15, 10 and 51, and when the counter shaft is rotated, the spindle will be rotated.

The carriage supporting the driving gearing, clutches and spindle, is capable of a sliding movement in the guideways 2.

A screw 53 is held against lengthwise movement but is capable of rotation, and has a screw-threaded connection with a projection 54 extending from the carriage.

A bracket 55 is supported by the base 1 and has its free end formed with a hub 56 having an annular V shaped groove 57. The screw 53 is supported in the hub 56 in a manner to rotate therein.

To the screw 53 is pinned a bar about midway of its length. One section of this bar is formed with a weight 58, and, the other section 59 has a lengthwise extending slot 60. The extreme end of the section 59 is formed with a hole 61, which is located in line with the groove 57 A lever 62 is loosely mounted on the screw 53 adjacent to the bar 59. One end of this lever is formed with a knob 68. and

the other end is formed with a counter balance weight 64. The inner face of this lever is formed with two projections 65 and 66. The inner face of the hub portion of the lever 62 has a cut-away portion 67 as shown in dotted lines Fig. 13.

A rocking bar 68 has one end 69 fitted to the cut-away portion 67 of the lever 62, and from its upper end extends a stud 70 which is located in the slot 60. To the end of the stud 7O projecting through the slot is connected a friction shoe 71 which is located in the V shaped groove 57 One end of this shoe extends through the hole 61, and a spring 7 2 surrounds this section of the shoe. The action of this spring is to hold the shoe firmly in the V shapegroove 57. VVhen'the shoe is seated in the V shape groove, a fixed connection will be had between the screw 53 and the base of the machine which will hold the screw against axial movement. By moving the lever 62, the rocking bar 68 will be moved which will move the shoe 71 free of the V shape groove and hold it in such position.

When the projection contacts with the stud 73 extending from the arm 59, a connection will be made between the lever 62 and screw 53 through the arm 59 until it will turn the screw, and it in turn will move the carriage 6111161 1n or out, and upon releasing the lever, the shoe will enter the V the belt 52 will always remain tight, and the same belt rotates the spindle 50, also the spindle, and a belt operating on both the spindle and the gearing for driving both.

2. In a mortising machine, the combina tion of a base, a carriage slidably supported by the base, a spindle supported by the carriage and capable of raising and lowering movements, gearing supported by the carraige for imparting the movements to the spindle, a pulley connected with the spindle, a pulley supported by the carriage and connected to the gearing for operating the same,

two pulleys supported by the base, and a belt connecting these pulleys with a prime mover.

3. In a machine of the character set forth, the combination with a base, of a carriage movably mounted thereon, a longitudinally movable spindle mounted on the carriage and movable therewith, means mounted on the carriage and movable therewith for raising and lowering the spindle, and means for rotating the spindle, including a member mounted on and movable with the carriage, said member being also connected to the spindle raising and lowering means for operating the same.

4. In a machine of the character set forth, the combination with a base, of a, carriage movably mounted thereon, a longitudinally movable spindle mounted on the carriage and movable therewith, means mounted on the carriage and movable therewith for raising and lowering the spindle, said means including a driving pulley, and means for rotating the spindle including a belt operatmg on the spindle and also engaging thepulley of the raising and lowering means to actuate said means.

5. In a machine of the character set forth, the combination with a base, of a carriage movably mounted thereon, a longitudinally movable spindle mounted on the. carriage and movable therewith, means mounted on the carriage and movable therewith for raising and lowering the spindle, and means for rotating the spindle, including a belt operating thereon, and a guide pulley for the belt journaled on the carriage and connected to the raising and lowering means, said guide pulley constituting a drive pulley for op erating said raising and lowering means. 7

6. In a machine of the character set forth,

the combination with a base, of a reciprocatory carriage mounted thereon and comprising a casing, a vertically movable and rotatable spindle journaled on the carriage and projecting above the same raising and lowering means for the spindle located Within the casing and having a shaft that projects above said casing, pulleys mounted respectively on the spindle and the shaft, a driving belt engaging both pulleys for operating the same, and means mounted on the DANIEL ,W. EDWARDS.

Witnesses:

A. O. BEHEL, E. D. E. N. BEHEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

